Zhongdeng, also known as China Securities Debt, is mainly responsible for the registration and custody of stocks, and is backed by China Clearing Corporation;

China Bond Debt, mainly responsible for treasury bonds, financial bonds, corporate bonds, Registration, custody and settlement of all interest rate bonds and some credit bonds in the inter-bank market such as project revenue bonds and asset-backed securities.

"ChinaBond" refers to "China Central Government Bond Depository and Clearing Co., Ltd.", which is mainly responsible for all interest rate bonds in the interbank market such as treasury bonds, financial bonds, corporate bonds, project income bonds, asset-backed securities, etc. and registration, custody and settlement of some credit bonds.

"Zhongdeng" refers to "China Securities Depository and Clearing Co., Ltd.", also known as China Securities Depository and Clearing Co., Ltd., which is mainly responsible for the registration and custody of stocks, and is backed by China Clearing Corporation;

" "CSI" refers to "CSI Index Co., Ltd." Integrate the existing index resources of the Shanghai and Shenzhen Stock Exchanges, compile a unified market-wide index that is influential in the country and even overseas markets, and provide underlying indexes for financial derivatives such as stock index futures.

China Securities Index Co., Ltd.--Baidu Encyclopedia